Google ASSOCIATE-ANDROID-DEVELOPER Online Practice Questions and Exam Preparation

Google ASSOCIATE-ANDROID-DEVELOPER Online Questions & Answers

• Question 41:

  

  The Testing Pyramid, shown in the Figure, illustrates how your app should include the three categories of tests: small, medium, and large. Medium tests are integration tests that:

  A. validate your app's behavior one class at a time.
  B. validate either interactions between levels of the stack within a module, or interactions between related modules.
  C. validate user journeys spanning multiple modules of your app.
  B. validate either interactions between levels of the stack within a module, or interactions between related modules.

• Question 42:

  Custom views and directional controller clicks. In general, you should send an AccessibilityEvent whenever the content of your custom view changes. For example, if a text value was changed in your custom view, you should emit an event of this type:

  A. TYPE_WINDOWS_CHANGED
  B. TYPE_VIEW_CONTEXT_CLICKED
  C. TYPE_WINDOWS_CHANGED
  D. TYPE_VIEW_TEXT_CHANGED
  D. TYPE_VIEW_TEXT_CHANGED

• Question 43:

  Once your test has obtained a UiObject object, you can call the methods in the UiObject class to perform user interactions on the UI component represented by that object. You can specify such actions as: (Choose four.)

  A. click() : Clicks the center of the visible bounds of the UI element.
  B. touch() : Touch the center of the visible bounds of the UI element.
  C. dragTo() : Drags this object to arbitrary coordinates.
  D. moveTo() : Move this object to arbitrary coordinates.
  E. setText() : Sets the text in an editable field, after clearing the field's content. Conversely, the clearTextField() method clears the existing text in an editable field.
  F. swipeUp() : Performs the swipe up action on the UiObject. Similarly, the swipeDown(), swipeLeft (), and swipeRight() methods perform corresponding actions.
  A. click() : Clicks the center of the visible bounds of the UI element.
  C. dragTo() : Drags this object to arbitrary coordinates.
  E. setText() : Sets the text in an editable field, after clearing the field's content. Conversely, the clearTextField() method clears the existing text in an editable field.
  F. swipeUp() : Performs the swipe up action on the UiObject. Similarly, the swipeDown(), swipeLeft (), and swipeRight() methods perform corresponding actions.

• Question 44:

  The following code snippet shows an example of an Espresso test:

  A. @Rulepublic void greeterSaysHello() {onView(withId(R.id.name_field)).do(typeText("Steve"));onView(withId(R.id.greet_button)).do(click());onView(withText("Hello Steve!")).check(matches(isDisplayed()));}
  B. @Testpublic void greeterSaysHello() {onView(withId(R.id.name_field)).perform(typeText("Steve"));onView(withId(R.id.greet_button)).perform(click());onView(withText("Hello Steve!")).check(matches(isDisplayed()));}
  C. @Testpublic void greeterSaysHello() {onView(withId(R.id.name_field)).do(typeText("Steve"));onView(withId(R.id.greet_button)).do(click());onView(withText("Hello Steve!")).compare(matches(isDisplayed()));}
  B. @Testpublic void greeterSaysHello() {onView(withId(R.id.name_field)).perform(typeText("Steve"));onView(withId(R.id.greet_button)).perform(click());onView(withText("Hello Steve!")).check(matches(isDisplayed()));}

• Question 45:

  We have a custom view that extends android.widget.ProgressBar. Our progress bar is not touchable, focusable, etc.: it just shows progress. Style for our custom progress bar extends "Widget.AppCompat.ProgressBar.Horizontal". An item, named "progressDrawable", in our style, is a xml file . What we usually can see as a main single element in this xml file:

  A. A State List ( element )
  B. A Layer List ( element) with items android:id="@+id/progress" and android:id="@+id/ background" inside it.
  C. An element with android:id="@+id/progress" identifier
  B. A Layer List ( element) with items android:id="@+id/progress" and android:id="@+id/ background" inside it.

• Question 46:

  If content in a PagedList updates, the PagedListAdapter object receives:

  A. only one item from PagedList that contains the updated information.
  B. one or more items from PagedList that contains the updated information.
  C. a completely new PagedList that contains the updated information.
  C. a completely new PagedList that contains the updated information.

• Question 47:

  With a room database. When performing queries, you'll often want your app's UI to update automatically when the data changes. Can you use a return value of type LiveData in your query method description to achieve this?

  A. Yes
  B. No
  A. Yes

• Question 48:

  As an example. In an Activity we have our TimerViewModel object (extended ViewModel), named mTimerViewModel. mTimerViewModel.timer method returns a LiveData value. What can be a correct way to set an observer to change UI in case if data was changed?

  A. mTimerViewModel!!.timer.value.toString().observe (Observer { aLong -> callAnyChangeUIMethodHere(aLong!!) })
  B. mTimerViewModel!!.timer.observe (this, Observer { aLong -> callAnyChangeUIMethodHere(aLong!!) })
  C. mTimerViewModel.observe (Observer { aLong -> callAnyChangeUIMethodHere(aLong!!) })
  B. mTimerViewModel!!.timer.observe (this, Observer { aLong -> callAnyChangeUIMethodHere(aLong!!) })

• Question 49:

  "Set the activity content to an explicit view. This view is placed directly into the activity's view hierarchy. It can itself be a complex view hierarchy." This can be done by calling method:

  A. findViewById
  B. setContentView
  C. setActionBar
  D. setContentTransitionManager
  E. setTheme
  B. setContentView

• Question 50:

  As an example. Our MutableLiveData object, named mLapseTime, is not connected to a Room database, etc. How can we change the value in mLapseTime?

  A. mLapseTime.postValue("new String")
  B. mLapseTime.setValue(1000l)
  C. mLapseTime.changeValue(1000l)
  B. mLapseTime.setValue(1000l)